North Fork Big Lost River at Wild Horse
Idaho — Water Level & Flood Stage
Located in Custer County, Idaho on the North Fork Big Lost River. Live water level data from USGS gauge 13120000, updated every 15 minutes.
Current Water Level
Gage Height
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Streamflow
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Last Reading
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Flood Stages
Minor Flood
5.11 ft
1,187 cfs
Action Stage
4.75 ft
968 cfs
Flood stages defined by the National Weather Service. Gage height data from USGS Water Resources.
What Floods at Each Level
5.11 ft
Homes along the East Fork of the Big Lost River from Wildhorse Creek to Star Hope Creek may see flooding along with lowland flooding from the confluence of Big Lost River North Fork upsteram of the East Fork of Big Lost River to the Copper Basin Airstrip.
4.75 ft
Near bankfull from confluence of Big Lost River North Fork upstream of the East Fork of Big Lost River to the Copper Basin Airstrip.
Impact statements from the National Weather Service, describing what typically happens at each water level.
7-Day Water Level Chart
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Historic Crests
| Date | Stage | Flow |
|---|---|---|
| May 20, 2006 | 6.41 ft | 2,170 cfs |
| May 20, 2006 | 6.41 ft | 2,170 cfs |
| Jun 11, 1965 | 6.39 ft | 1,420 cfs |
| Jun 11, 1965 | 6.39 ft | 1,420 cfs |
| May 24, 1967 | 6.23 ft | 1,380 cfs |
About This Gauge
USGS Site
NWS LID
BLRI1
River
North Fork Big Lost River
County
Custer, ID
Coordinates
43.9327°N, 114.1139°W
Get Flood Alerts for North Fork Big Lost River
StormCast monitors this gauge and sends a push notification to your phone when the water level crosses into a new flood category — even at 3 AM.
Frequently Asked Questions
What is the current water level of North Fork Big Lost River at Wild Horse?
The North Fork Big Lost River at Wild Horse gauge is maintained by USGS (site 13120000) and reports water levels every 15 minutes. Visit this page to see the latest reading updated live, or download StormCast to get push alerts when levels rise.
What is flood stage for North Fork Big Lost River at Wild Horse?
The NWS-defined flood stage for North Fork Big Lost River at Wild Horse is 5.11 feet. Action stage begins at 4.75 feet. Moderate flooding starts at N/A feet, and major flooding at N/A feet.
How do I get alerts when North Fork Big Lost River rises?
Download StormCast free on Google Play, go to River Gauges, and add North Fork Big Lost River at Wild Horse to your watchlist. StormCast will send a push notification to your phone whenever the water level crosses into a new NWS flood category — even when your screen is off.
Where is the North Fork Big Lost River at Wild Horse gauge located?
The gauge is located in Custer County, Idaho at coordinates 43.9327°N, 114.1139°W. USGS site number: 13120000. Data is provided by the U.S. Geological Survey and the National Weather Service.
On This River
More Resources
Source & Notes
Data provided by: US Geological Survey, Observations courtesy of U.S. Geological Survey
- Stage may be affected by ice during winter months.